linux/drivers/firewire
Stefan Richter 2fe2023adf firewire: revert to 4 GB RDMA, fix protocols using Memory Space
Undo a feature introduced in v3.14 by commit fcd46b3442
"firewire: Enable remote DMA above 4 GB".  That change raised the
minimum address at which protocol drivers and user programs can register
for request reception from 0x0001'0000'0000 to 0x8000'0000'0000.
It turned out that at least one vendor-specific protocol exists which
uses lower addresses:  https://bugzilla.kernel.org/show_bug.cgi?id=76921

For the time being, revert most of commit fcd46b3442 so that affected
protocols work like with kernel v3.13 and before.  Just keep the valid
documentation parts from the regressing commit, and the ability to
identify controllers which could be programmed to accept >32 bit
physical DMA addresses.  The rest of fcd46b3442 should probably be
brought back as an optional instead of default feature.

Reported-by: Fabien Spindler <fabien.spindler@inria.fr>
Cc: <stable@vger.kernel.org> # 3.14+
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2014-05-29 15:50:30 +02:00
..
Kconfig firewire net, ipv6: IPv6 over Firewire (RFC3146) support. 2013-03-26 12:32:13 -04:00
Makefile ieee1394: move init_ohci1394_dma to drivers/firewire/ 2010-10-11 14:48:03 +02:00
core-card.c IEEE 1394 (FireWire) subsystem updates post v3.4: 2012-05-24 12:57:47 -07:00
core-cdev.c firewire: core: typecast from gfp_t to bool more safely 2013-07-30 15:46:18 +02:00
core-device.c firewire: don't use PREPARE_DELAYED_WORK 2014-03-07 10:19:57 -05:00
core-iso.c firewire: core: fix multichannel IR with buffers larger than 2 GB 2012-06-17 19:35:26 +02:00
core-topology.c Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
core-transaction.c firewire: Enable remote DMA above 4 GB 2014-01-20 01:11:13 +01:00
core.h firewire: revert to 4 GB RDMA, fix protocols using Memory Space 2014-05-29 15:50:30 +02:00
init_ohci1394_dma.c various: Fix spelling of "asynchronous" in comments. 2012-11-19 14:32:13 +01:00
net.c firewire: net: fix use after free 2014-02-28 11:02:51 +01:00
nosy-user.h firewire: nosy: endianess fixes and annotations 2010-07-27 11:04:11 +02:00
nosy.c firewire: remove use of __devinitdata 2012-11-28 12:40:42 -08:00
nosy.h firewire: nosy: misc cleanups 2010-07-27 11:04:10 +02:00
ohci.c firewire: revert to 4 GB RDMA, fix protocols using Memory Space 2014-05-29 15:50:30 +02:00
ohci.h firewire: ohci: fix TI TSB82AA2 regression since 2.6.35 2010-10-17 14:09:12 +02:00
sbp2.c firewire: don't use PREPARE_DELAYED_WORK 2014-03-07 10:19:57 -05:00